Spirometer.



PATENTED JULY 28, 1908.

J. A. MORRIS.

-' SPIROMETER.

APPLICATION FILED SEPT. 30. 1905.

I Witnesses when,

JAMES A. MORRIS, OF ATLANTA, GEORGIA.

SPIROME TER.

Specification of Letters Patent.

Patented July 28, 1908.

Application filed September 30, 1905. Serial No. 280,759.

To all whom it may concern:

Be it known that I, JAMES A. MORRIS, citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Spirometers, of which the following is a specification.

My invention relates to improvements in spirometers or devices for testing the exhaling ability of the users.

The improvements which form the subject matter of this application for patent are designed to provide an inexpensive device which can be placed on the market at a low cost, in which there will be nothing to get out of order or unsanitary, and one which will test the lungs and diaphragm in their exhaling capacity.

In the accompanying drawing which forms a part of this applicationI have shown a preferred adaptation of my invention and also.

modified forms of same embodying its essential elements, in the following views:

Figure 1 is a vertical section through one form of my device; Fig. 2 is a detail of a modified form of stopper.

Referring to Fig. 1, A represents a glass bottle of ordinary form and construction, and supplied with a cork stopper I) inserted in the neck in the usual manner. An opening extends longitudinally through the stopper and through same is inserted a tube 0 which projects downwardly into the body of the bottle. This tube may be made of glass, porcelain, metal, or any suitable material and serves as abushing and support for a graduated registering tube (1 which is slidably mounted in the tube 0, and is of sufiicient length to extend above the stopper and nearly to the bottom of the bottle. This tube (1 is open at both ends and to its upper end is attached a section of flexible tubing 6 which has applied to its free end a mouth piece 6 The lower end of the registering tube is shown as flaring but this is not essential but merely useful as indicating which end of the tube is to be in the bottle should the parts be disassembled.

In Fig. 2 I have shown a preferred form of stopper in which the bushing tube 0 is arranged. This stopper is not made of cork, but of rubber or wood and the cap 6 extends over the lips of the neck of the bottle eflecting a better closure. If desired, the cap may be used for advertising purposes by displaying matter on its sides, and it may be made of metal or other suitable material.

In the operation of the device shown in Fig. 1, the breath of the user will raise the graduated tube and such portion of the weight of the flexible tube as it supports the latter tube being partly supported by the hand of the user.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a spirometer, a bottle or like container, a perforated stopper for the same, a graduated tube slidably mounted in said sto per and a flexible pipe communicating wit said tube for the purpose set forth.

2. In a spirometer, a container, a perforated stopper for said container, an elongated bushing arranged in said stopper and extending downwardly into the container, a graduated tube slidably arranged in said bushing, and means for conducting the breath of the user to said graduated tube.

In testimony whereof I afiix my signature in presence of two witnesses.

JAMES A. MORRIS.

Witnesses:

F. J. SUuMERs, J. B. WHEAT. 

